MODEL REFERENCE
MERCUSYS Halo H80X V1
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The checks and guides below come from the official manuals for this model.
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Errors and indicators
Light patterns and messages documented in the manualFind the indicator lights

Diagram key
- Solid Yellow: Halo is starting up.
- Pulsing Yellow: Halo is being reset.
- Solid Blue: Halo is being set up.
- Pulsing Blue: Halo is ready for setup.
- Solid White: Halo is registered and working normally.
- Pulsing White: Halo is updating firmware; wait.
- Solid Red: Halo has an issue.
- Pulsing Red: Halo is disconnected from the main Halo.
- Ethernet Ports: Connect Halo to a modem, Ethernet outlet or other internet devices.
- Power Slot: Connect to a power socket with the provided power adapter.
- Reset Button: Press for one second to restore factory-default settings.
Solid Redhalo indicator is solid red
- The indicator means Halo has an issue.
- The operation and quick installation guides do not specify a separate solid-red remedy.
- MERCUSYS provides technical support; do not disassemble, repair or modify the unit yourself.
Pulsing Redhalo indicator is pulsing red
- The indicator means Halo is disconnected from the main Halo.
- The operation and quick installation guides give no separate pulsing-red repair sequence.
- MERCUSYS provides technical support; do not disassemble, repair or modify the unit yourself.
Guides
About this guide
Instructions from the manualScope and mesh compatibility7 steps
- This reference covers Halo H80X hardware version 1.0, using the English guide and EU specifications.
- Features can vary by model, software version, region or ISP; the guide’s screenshots, steps and descriptions are examples.
- Halo H-series and S-series units cannot work together.
- Seamless roaming requires clients supporting 802.11k/v/r and may need additional setup; performance depends on the client.
- MU-MIMO requires compatible clients.
- Wireless signal rates are physical IEEE rates, not guaranteed throughput, coverage or device capacity.
- Actual performance depends on network conditions, client limits, building materials, obstacles, traffic and client location.
Appearance
Instructions from the manualRead all Halo indicator states6 steps
- Solid yellow means startup; pulsing yellow means a reset is in progress.
- Solid blue means setup is in progress; pulsing blue means the unit is ready for setup.
- Solid white means the unit is registered and working normally.
- Pulsing white means firmware is updating: wait.
- Solid red means the unit has an issue.
- Pulsing red means it is disconnected from the main Halo.
Connections and factory reset5 steps
- Use the Ethernet ports to connect a modem, Ethernet outlet or other internet devices.
- The shared guide describes at least two WAN/LAN auto-sensing ports; the exact H80X specification is recorded separately.
- Connect the power slot to a socket with the provided adapter.
- Press Reset for one second to restore factory-default settings.
- Pulsing yellow indicates resetting; pulsing blue indicates readiness for setup.
Set up your halo
Instructions from the manualSet up Halo and add units7 steps
- Download MERCUSYS from Google Play or the Apple App Store, or scan the guide’s QR code, and install it on a phone or tablet.
- Open the app and log in with your Mercusys ID.
- If you do not have one, choose Sign Up and follow the app prompts.
- Choose LET’S BEGIN and follow the app’s steps to connect and configure Halo.
- When setup reports the network is ready, connect your devices to the Halo network.
- Use the plus button at the top right to add more Halo units.
- Follow the illustrated placement prompts for your home layout.
Dashboard
Instructions from the manualCheck Halo and connected-device details6 steps
- After setup, use the Dashboard to check all Halo units, manage connected devices and add units.
- Use Overview to view connected devices and the network/globe control to check Halo status.
- Select a Halo to see its details; select a connected device to view its details.
- Use More for additional features.
- Swipe right to open the menu.
- Use the plus button to add more devices.
Wi-fi settings
Instructions from the manualChange Wi-Fi and guest-network settings5 steps
- Open More > Wi-Fi to change the main network name and password.
- Enable a separate guest network when needed.
- The illustrated settings have separate 2.4 GHz and 5 GHz controls for each network.
- Use Share to give network details to family and friends.
- Screenshots are examples, not promised default passwords or network names.
Blacklist
Instructions from the manualBlock devices from the network3 steps
- Open More > Blacklist.
- Add connected clients through Clients, or use Other Device and enter the device MAC address.
- Devices on the blacklist are prevented from accessing the network.
Online update
Instructions from the manualUpdate Halo firmware onlineView
When the MERCUSYS app prompts an update, open More > Update Halo and follow its update prompts. A pulsing-white indicator means firmware is updating; wait.
Advanced features
Instructions from the manualInternet and IPv6 settings2 steps
- Open More > Advanced to modify IPv4 or IPv6 WAN settings and add IPv6 firewall rules.
- The guide identifies these features but supplies no complete ISP-specific configuration sequence.
Change LAN IP and DHCP settings5 steps
- Open More > Advanced.
- In LAN IP, edit the LAN address and subnet mask and save.
- In DHCP Server, set the start and end addresses and default gateway; primary and secondary DNS fields are optional.
- Save the settings.
- Illustrated addresses are examples.
Enable VLAN or MAC Clone3 steps
- Open More > Advanced and use IPTV/VLAN to enable VLAN mode.
- For MAC Clone, enable the feature and choose the client MAC address or a custom MAC address.
- Select or enter the address specified by your ISP, as the screenshot warns.
Reserve an address for a device3 steps
- Open More > Advanced > Address Reservation and choose Create.
- Select the device and finish with Done.
- The reserved device receives the same IP address when it connects to Halo, helping administration and troubleshooting.
Set up port forwarding3 steps
- Open More > Advanced > Port Forwarding and choose Create or Add as illustrated.
- Port forwarding makes local computers or devices accessible from other devices over the internet.
- This guide does not show the subsequent rule-entry fields; do not infer missing values from the example graphic.
Register a DDNS domainView
Open the Advanced features and use MERCUSYS DDNS > Register. DDNS supplies a domain name for internet access to Halo and local resources instead of using an IP address.
Control SIP ALGView
Open More > Advanced and use SIP ALG to enable the feature. When enabled, clients can communicate with SIP servers through NAT.
Enable Fast Roaming and check compatibility4 steps
- Open More > Advanced and use Fast Roaming.
- IEEE 802.11r roaming allows devices to switch Halo connections seamlessly.
- Enabling this feature may disconnect older wireless devices.
- If a device disconnects after enabling or disabling it, forget the Halo network on that device and join it again.
Older device disconnects after changing Fast Roaming1 check
- A device disconnects after Fast Roaming is turned on or off
- Forget the Halo network on that device and join it again.
Enable BeamformingView
Open More > Advanced and use Beamforming. It concentrates the Wi-Fi signal towards connected devices for stronger connections.
Control the indicator and Night Mode4 steps
- Open More > Advanced > LED Control.
- Use the LED control to change the indicator setting.
- Enable Night Mode to turn off the LED automatically.
- The guide gives no separate timing configuration steps.
Choose Router or Access Point mode5 steps
- Open More > Advanced > Operation Mode.
- Router is the illustrated default: Halo connects directly to internet service using Dynamic IP, Static IP, PPPoE or another supported type and shares access with wired or wireless devices.
- NAT and DHCP server are enabled by default in this mode.
- Access Point connects by Ethernet to an existing wired or wireless router and extends its wireless coverage.
- NAT, Parental Controls and QoS are not supported in Access Point mode.
Configure notifications3 steps
- Open More > Advanced > Notifications and configure alerts for firmware updates, parental controls, newly detected devices and monthly reports, then save.
- The screenshot shows notifications enabled.
- To disable device notifications, use that device’s Settings > Notifications page.
Enable UPnPView
Use UPnP in the Advanced features to enable it. Local devices can then open ports dynamically for applications such as multiplayer games and real-time communication.
Wps
Instructions from the manualConnect a WPS clientView
Open More > WPS. Enable WPS for a nearby Halo in the app first, then enable WPS on the client. This is an app control, not a separate physical WPS button on H80X.
Parental controls
Instructions from the manualCreate family profiles and parental controls7 steps
- Open More > Parental Controls and add a new profile for each family member you want to manage.
- Specify the devices belonging to that person.
- Set a filter level and blocked content to restrict inappropriate content; the examples show Child, Pre-Teen, Teen and Adult levels and categories or websites.
- Set when and how long that person can access the internet.
- The Time Controls screen includes daily time limits, bed time, weekdays and weekends.
- Pause internet access when needed.
- These controls are not supported in Access Point mode.
Qos
Instructions from the manualSet bandwidth and device priority6 steps
- Open More > QoS.
- Set total bandwidth before using Device Priority.
- Obtain it from your ISP or an online speed test, then enter download and upload bandwidth in Mbps and save.
- Choose the device to prioritize and the duration; the guide’s example is prioritizing a family member’s laptop for one hour during a video call.
- The illustrated bandwidth fields show 0.01–1000 Mbps.
- QoS is unavailable in Access Point mode.
Monthly report
Instructions from the manualView and control monthly reports4 steps
- Open More > Monthly Report to review usage, including security threats and daily connected-device totals.
- Use the Monthly Report switch to enable or disable reporting.
- When enabled, activity is recorded and presented monthly.
- The illustrated screen also has Clear Report Data.
Managers
Instructions from the manualAdd network managers3 steps
- Open More > Managers to add friends or family who can help manage the network.
- Each manager needs their own Mercusys ID.
- Use Add, enter the email address used to register that person’s MERCUSYS ID and choose Save, as the example screen shows.
Authentication
Instructions from the manualEU indoor use and RF separation3 steps
- In EU member states, EFTA countries, Northern Ireland and Great Britain, use this device indoors only.
- The EU RF-exposure instructions specify operation 20 cm from the body.
- This Class B device may cause radio interference in a domestic environment, requiring adequate measures.
Safety information
Instructions from the manualSafe operation and when to stop13 steps
- Keep the device away from water, fire, humidity and hot environments.
- Operate at 0–40 °C (32–104 °F).
- Do not disassemble, repair or modify it.
- Contact MERCUSYS if service is needed.
- Do not use a damaged charger or USB cable.
- Use only recommended power supplies provided by the manufacturer in the original packaging.
- Do not use it where wireless devices are prohibited.
- Install the adapter close to the equipment where it remains accessible.
- Electromagnetic fields and magnets can interfere with implanted medical devices.
- Keep the product and its adapter more than 15 cm (6 inches) from pacemakers or other implants.
- If interference is suspected, turn it off and consult your physician for advice specific to the implant.
- The general EU RF-use separation is 20 cm.
- Read and follow the safety information and use the product carefully; improper use can cause accidents or damage.
Installation safety reminders6 steps
- Keep the device away from water, fire, humidity and heat.
- Do not disassemble, repair or modify it; contact MERCUSYS for service.
- Do not use a damaged charger or USB cable, or chargers other than those recommended.
- Do not use it where wireless devices are prohibited.
- Install the adapter near the equipment and keep it accessible.
- Read and follow the safety information and use the product carefully; improper use can cause accidents or damage.
Explanation of the symbols on the product label
Instructions from the manualDispose of electrical equipment correctly3 steps
- The WEEE selective-sorting symbol requires recycling or dismantling under European Directive 2012/19/EU to limit environmental impact.
- Give the product to a competent recycling organization, or return it to the retailer when buying new electrical or electronic equipment.
- The equipment marking is at the bottom of the device.
Get started
Instructions from the manualQuick setup with Mercusys IDView
Download the MERCUSYS app. Open it and sign up with an email address to create a Mercusys ID. Follow the app’s step-by-step instructions to configure Halo.
Led status
Instructions from the manualQuick-guide indicator meanings6 steps
- Solid yellow means startup; pulsing yellow means a reset is in progress.
- Solid blue means setup is in progress; pulsing blue means the unit is ready for setup.
- Solid white means the unit is registered and working normally.
- Pulsing white means firmware is updating: wait.
- Solid red means the unit has an issue.
- Pulsing red means it is disconnected from the main Halo.
Specifications
Instructions from the manualHardware and network capabilities5 steps
- Each Halo has three auto-sensing gigabit WAN/LAN ports, a Reset button and dimensions 128 × 81 × 83.7 mm (approximately 5 × 3.2 × 3.3 inches).
- Supported wireless standards are IEEE 802.11a/n/ac/ax on 5 GHz and b/g/n/ax on 2 .4GHz; physical signal rates are 2402 Mbps and 574 Mbps respectively.
- Mesh protocol is 802.11k/v/r.
- Wireless security is WPA-PSK/WPA2-PSK/WPA3; WPA3 requires compatible clients.
- The specification lists Router and Access Point modes; Dynamic IP, Static IP, PPPoE, L2TP and PPTP WAN types; DHCP server/client; IPv4/IPv6; one guest network per band; local/remote management and multiple managers.
3-pack contents and environmental limits9 steps
- The EU V1 3-pack contains three H80X units, one RJ45 Ethernet cable, three power adapters and a Quick Installation Guide.
- Operate at 0–40°C (32–104°F), with 10–90% non-condensing humidity.
- Storage humidity is 5–90% non-condensing.
- Wi-Fi 6 features including OFDMA, MU-MIMO, 1024-QAM, HE160, BSS Color and TWT require compatible clients.
- 160 MHz may be unavailable in some regions; not all mandatory IEEE 802.11AX features are supported and firmware upgrades may be required.
- Only one auto-sensing port can serve as WAN at a time.
- Physical wireless rates, coverage and device capacity are not guaranteed; actual results depend on network, clients, materials, obstacles, traffic and client location.
- Roaming requires 802.11k/v/r clients and may need setup; MU-MIMO requires compatible clients.
- H-series can form a mesh together, but H-series and S-series cannot work together.
Controls and parts
See the manual diagrams 1 diagram

Diagram key
- DC voltage: Direct-current voltage.
- AC voltage: Alternating-current voltage.
- Class II equipment: Class II equipment.
- Polarity of output terminals: Polarity of the output terminals.
- Energy efficiency Marking: Energy-efficiency marking.
- Indoor use only: For indoor use only.
- Caution: Caution.
- Operator’s manual: Consult the operator’s manual.
- RECYCLING: WEEE selective-sorting mark: recycle or dismantle under European Directive 2012/19/EU. Give the product to a competent recycling organization or the retailer when buying new electrical or electronic equipment.